Winding Ohmmeter  - RMO TW

The Winding Ohmmeter of the RMO-TW series is designed for winding resistance measurement of inductive objects. The RMO-TW instrument is based on the state of the art technology, using the most advanced switch mode technology available today. The RMO-TW instrument is accurate (0,1%), powerful (up to 50 A) and lightweight. It generates a true DC ripple free current with automatically regulated measurement and discharging circuit.

RMO-TW instrument can perform a simple, quick and reliable transformer on-load tap changer verification. This instrument enables measurements of a winding resistance in every tap position of an on-load tap changer without discharging between the tests. Problems with switching of the OLTC, such as interruption, can be detected with these measurements. The results are displayed on a backlit LCD display. 
Three resistance measurement channels
One temperature measurement channel
Accuracy 0,1%
On-load tap changer verification
Automatic resistance measurement for the Heat Run test
Rapid automatic demagnetization
Automatic discharge circuit
Resistance measurement of transformers, rotary machines and 
non-inductive objects
Four models: RMO10TW, RMO20TW, RMO30TW, RMO50TW